THE CHRONOLOGICAL CALENDAR. 



25 



THE CYCLE. 



The cycle in the Archaic system consists of twenty katuns, or 144,000 days. Thirteen 

 of them constitute a great cycle. They are numerated: 13, 1, 2, 3, 4, 5, 6, 7, 8. 9, 

 10, 11, 12. 



/ = ^' 



s£T7 



t 





O 



r 



1 









W 





=y 



53rd Great Cycle. 



54th Great C^cle. 



55th Great Cycle. 



THE GREAT CYCLE. 



The great cycle is composed of thirteen cycles, or 1,872,000 days. As seventy-three 

 «reat cycles constitute the grand era, and as that number is indivisible, the great 

 cycles must have heen numerated to conform to the numeration of the cycles — 

 73, 1, 2, 3, 4, and so on in regular arithmetical progression up to 72. 



BIOL. CENTR.-AMER., Archscol. 



